It is said that no two waves at the seashore are exactly alike. Probably true. The same can be said of moments like this image, as the water tumbles over the top of a waterfall. This is near Mt. Baker in the North Cascades.

I've been fooled by this kind of image before. Everything is happening so fast that it is impossible to know precisely what is in any given capture until you look at it. Even so, chimping in the field is dicey on that little LCD screen in the bright sunlight. The best defense is to simply make lots of exposures and then select the best, once the images can be viewed under better circumstances back home. In this case, I made a couple dozen "copies" with a few slightly different compositions. This is the best of the lot — and by happenstance was the first one of the bunch.